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Substances/ Elements

TermDefinition
Chemical Reaction a process during which the atoms of starting substants (reactants) rearrange to form a new substance (products)
Symbol a combination of capital and lower case letters that stand for an element
Evidence of a chemical reaction 1. gas creation 2. temp change 3. creation of a new substance
Ways to identify a substance 1. chemical name 2. chemical formula 3. common name
matter anything that has mass and takes up space
Substance a type of matter defined by a unique particle
Water H20
Hydrogen H
Calcium Ca
Sodium Na